/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.apache.jk.common;

import java.io.IOException;

import org.apache.jk.core.JkHandler;
import org.apache.jk.core.Msg;
import org.apache.jk.core.MsgContext;
import org.apache.jk.core.WorkerEnv;
import org.apache.tomcat.util.buf.MessageBytes;

/**
 * A dummy worker, will just send back a dummy response. Used for testing and
 * tunning.
 */
public class WorkerDummy extends JkHandler {
	public WorkerDummy() {
		String msg = "HelloWorld";
		byte b[] = msg.getBytes();
		body.setBytes(b, 0, b.length);
	}

	/* ==================== Start/stop ==================== */

	/**
	 * Initialize the worker. After this call the worker will be ready to accept
	 * new requests.
	 */
	public void init() throws IOException {
		headersMsgNote = wEnv.getNoteId(WorkerEnv.ENDPOINT_NOTE, "headerMsg");
	}

	MessageBytes body = MessageBytes.newInstance();
	private int headersMsgNote;

	public int invoke(Msg in, MsgContext ep) throws IOException {
		MsgAjp msg = (MsgAjp) ep.getNote(headersMsgNote);
		if (msg == null) {
			msg = new MsgAjp();
			ep.setNote(headersMsgNote, msg);
		}

		msg.reset();
		msg.appendByte(AjpConstants.JK_AJP13_SEND_HEADERS);
		msg.appendInt(200);
		msg.appendBytes(null);

		msg.appendInt(0);

		ep.setType(JkHandler.HANDLE_SEND_PACKET);
		ep.getSource().invoke(msg, ep);
		// msg.dump("out:" );

		msg.reset();
		msg.appendByte(AjpConstants.JK_AJP13_SEND_BODY_CHUNK);
		msg.appendInt(body.getLength());
		msg.appendBytes(body);

		ep.getSource().invoke(msg, ep);

		msg.reset();
		msg.appendByte(AjpConstants.JK_AJP13_END_RESPONSE);
		msg.appendInt(1);

		ep.getSource().invoke(msg, ep);
		return OK;
	}

	private static final int dL = 0;
}
